bioorganic chemistry. Herein, we reported a visible‐light‐induced iron‐catalyzed α‐alkylation of oxindoles with alcohols to offer a variety of α‐alkylled oxindoles at roomtemperature. This reaction featured broad substrate scope with good functional tolerance under simple conditions. Detailed mechanistic studies has been done to illuminate the essetial role of light in this borrowing hydrogen (BH) reaction